Library for the MMA7660 triple axis accelerometer

Dependents:   Websocket_Ethernet_acc app-board-Sprint-WS-Acc app-board-Ethernet-Websocket app-board-Wifly-Websocket ... more

Revision:
1:8997a1b348dd
Parent:
0:7bc29a9ea016
Child:
2:a8e20db7901e
diff -r 7bc29a9ea016 -r 8997a1b348dd MMA7660.h
--- a/MMA7660.h	Sun Oct 14 08:02:53 2012 +0000
+++ b/MMA7660.h	Tue Oct 16 19:42:19 2012 +0000
@@ -10,11 +10,28 @@
 #define MMA7660_XOUT_R      0x00
 #define MMA7660_YOUT_R      0x01
 #define MMA7660_ZOUT_R      0x02
+#define MMA7660_TILT_R      0x03
+#define MMA7660_INT_R       0x06
 #define MMA7660_MODE_R      0x07
+#define MMA7660_SR_R        0x08
+
 
 class MMA7660
 {
 public:
+    /** 
+    * The 6 different orientations and unknown
+    *
+    * Up & Down = X-axis
+    * Right & Left = Y-axis
+    * Back & Front = Z-axis
+    * 
+    */
+    enum Orientation{Up, Down,
+                    Right, Left,
+                    Back, Front,
+                    Unknown};
+    
     /**
     * Creates a new MMA7660 object
     *
@@ -54,29 +71,75 @@
     void readData( int *data);
     void readData( float *data);
     
-    /** Get X-data
+    /** 
+    * Get X-data
     *
     * @param return - X-acceleration in g's
     */
     float getX( void );
     
-    /** Get Y-data
+    /** 
+    * Get Y-data
     *
     * @param return - Y-acceleration in g's
     */
     float getY( void );
     
-    /** Get Z-data
+    /** 
+    * Get Z-data
     *
     * @param return - Z-acceleration in g's
     */
-    float getZ( void );        
+    float getZ( void );
+    
+    /** 
+    * Sets the active samplerate
+    *
+    * The entered samplerate will be rounded to nearest supported samplerate.
+    * Supported samplerates are: 120 - 64 - 32 - 16 - 8 - 4 - 2 - 1 samples/second.
+    *
+    * @param samplerate - the samplerate that will be set
+    */
+    void setSampleRate(int samplerate);        
+
+    /**
+    * Returns which side is pointing down
+    *
+    * @param return - Orientation which is closest to down
+    */    
+    Orientation getGlobalOrientation( void );
+    
+    /**
+    * Returns if it is on its front, back, or unknown side
+    *
+    * This is read from MMA7760s registers, page 12 of datasheet
+    *
+    * @param return - Front, Back or Unknown orientation
+    */
+    Orientation getSide( void );
+    
+    /**
+    * Returns if it is on it left, right, down or up side
+    *
+    * This is read from MMA7760s registers, page 12 of datasheet
+    *
+    * @param return - Left, Right, Down, Up or Unknown orientation
+    */
+    Orientation getOrientation ( void );
+    
+    /**
+    * Returns if since last check there has been a tap
+    *
+    * @param return - bool that is true when a tap has been detected
+    */    
+    bool isTapped( void );
+
 
 
 private:
 
     /**
-    * Writes data to the device, could be private, but public is handy so you can transmit directly to the MPU.
+    * Writes data to the device
     *
     * @param adress - register address to write to
     * @param data - data to write
@@ -84,7 +147,7 @@
     void write( char address, char data);
 
     /**
-    * Read data from the device, could be private, but public is handy so you can transmit directly to the MPU.
+    * Read data from the device
     *
     * @param adress - register address to write to
     * @return - data from the register specified by RA